CN203532343U - Special stop spanner - Google Patents

Special stop spanner Download PDF

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Publication number
CN203532343U
CN203532343U CN201320737279.2U CN201320737279U CN203532343U CN 203532343 U CN203532343 U CN 203532343U CN 201320737279 U CN201320737279 U CN 201320737279U CN 203532343 U CN203532343 U CN 203532343U
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CN
China
Prior art keywords
centrifugal impeller
stop
leaf
spanner
inclination angle
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Active
Application number
CN201320737279.2U
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Chinese (zh)
Inventor
刘雅楣
王睿
张鸿志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SICHUAN YAMEI POWER TECHNOLOGY Co Ltd
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SICHUAN YAMEI POWER TECHNOLOGY Co Ltd
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Priority to CN201320737279.2U priority Critical patent/CN203532343U/en
Application granted granted Critical
Publication of CN203532343U publication Critical patent/CN203532343U/en
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Abstract

The utility model discloses a special stop spanner. The special stop spanner comprises a circular spanner body, wherein the circular spanner body comprises an outer circle layer and an inner circle layer; stop teeth are arranged on an inner circle wall of the inner circle layer; a blade concave surface dip angle and a blade convex surface dip angle are arranged on two side surfaces of the top of each stop tooth respectively; and a blade concave root rounded angle and a blade convex root rounded angle are arranged on two side surfaces of the bottom of each stop tooth respectively. The special stop spanner aims to solve technical problems in disassembly of centrifugal impellers at present, when stop operation is performed on the centrifugal impellers made of aluminium alloys and provided with vanes with spatial curved surfaces, the stop teeth are located in gaps among the vanes, roots of the centrifugal impellers are stressed, upper parts of the vanes of the centrifugal impellers are prevented from being broken due to shear force, the vanes of the centrifugal impellers are protected well, gland nuts of the centrifugal impellers are disassembled under the condition that parts are not damaged, and economic losses are reduced; and the special stop spanner has the characteristics of simple structure, convenience in operation and high practicability.

Description

A kind of special-purpose stop spanner
Technical field
The utility model relates to centrifugal impeller disassembling tool field, specifically, is a kind of special-purpose stop spanner.
Background technique
Centrifugal impeller is rotatable parts, while working because of auxiliary power unit, centrifugal impeller counterclockwise rotates, centrifugal impeller gland nut is left-handed nut, after work a period of time, left-handed nut and centrifugal impeller transmission shaft turn tighter and tighter, and its coupling torque is considerably beyond the screw-down torque of when assembling left-handed nut regulation.The left-handed nut spanner of using during assembling can not unclamp left-handed nut at all.During assembling, centrifugal impeller gland nut moment is 29.5~31.5Nm because this moment is very little, during assembling with hand to centrifugal impeller stop, just can realize the screw-down torque 29.5~31.5Nm of gland nut.But when unclamping gland nut with gland nut spanner, 2 people's application of forces all can not realize the stop to centrifugal impeller to centrifugal impeller.Centrifugal impeller rotates with gland nut spanner with gland nut, and gland nut has not a particle of loosening, and people can not be to centrifugal impeller stop.Cause repair work not made progress, have a strong impact on repair progress, virtually increased cost.
Model utility content
The purpose of this utility model is to provide a kind of special-purpose stop spanner; technical problem for above-mentioned existence; to material, it is being aluminum alloy; blade is that space curved surface centrifugal impeller carries out in stop operation, and stop tooth is positioned at gap between blade, and centrifugal impeller root is stressed; avoid centrifugal impellers blades top be subject to shearing force and fracture; protect well centrifugal impellers blades, guarantee to pull down centrifugal impeller gland nut in the situation of injuring part not, there is simple in structure, easy to operate, practical feature.
The utility model is achieved through the following technical solutions: a kind of special-purpose stop spanner, comprise ring wrench body, described ring wrench body comprises outer layer and inner layer, on the inner ring wall of described inner layer, be provided with stop tooth, in described Liang Ge side, stop tooth top, be respectively arranged with leaf pelvic surface of sacrum inclination angle and leaf back inclination angle, the side, two of bottoms of described stop tooth is respectively arranged with leaf basin root fillet and blade back root fillet.In use, ring wrench body is put to centrifugal impeller, stop tooth is in 2 blade spaces of centrifugal impeller, leaf pelvic surface of sacrum inclination angle and leaf back inclination angle contact with leaf pelvic surface of sacrum and the leaf back of centrifugal impeller respectively, leaf basin root fillet and blade back root fillet contact with leaf basin root and the blade back root of centrifugal impeller, thereby make the root of centrifugal impellers blades stressed, avoid centrifugal impellers blades top be subject to shearing force and fracture, when operation, can carry out two-way stop, when described stop tooth is adjacent to centrifugal impeller blade back root to centrifugal impeller stop, gland nut is unscrewed in realization, when described stop tooth is adjacent to centrifugal impeller leaf basin root to centrifugal impeller stop, realizes and tighten gland nut.
For better realizing the utility model, for ease of leaf pelvic surface of sacrum inclination angle and leaf back inclination angle, well with the inclination angle of centrifugal impeller leaf pelvic surface of sacrum and the inclination angle of centrifugal impeller leaf back, well coordinate, be provided with especially following structure: described leaf pelvic surface of sacrum inclination angle is greater than the inclination angle of centrifugal impeller leaf pelvic surface of sacrum, and described leaf back inclination angle is less than the inclination angle of centrifugal impeller leaf back.
For better realizing the utility model, for ease of leaf basin root fillet and blade back root fillet, with the fillet of centrifugal impeller leaf basin root and the fillet of centrifugal impeller blade back root, well coordinate, be provided with especially following structure: described leaf basin root fillet is with the fillet equal and opposite in direction of centrifugal impeller leaf basin root, and described blade back root fillet is with the fillet equal and opposite in direction of centrifugal impeller blade back root.
For better realizing the utility model, for the ease of making, between centrifugal impellers blades, can there is stop tooth stressed, following structure is set especially: described stop tooth is 24.
For better realizing the utility model, for the ease of ring wrench body can be well fixed on casing flange, be provided with especially following structure: along circle central axis to being provided with installation through hole, described installation through hole is 12 in described outer layer.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) technical problem existing when the utility model is for existing dismounting centrifugal impeller; to material, it is being aluminum alloy; blade is that space curved surface centrifugal impeller carries out in stop operation; stop tooth is positioned at gap between blade; centrifugal impeller root is stressed; avoid centrifugal impellers blades top be subject to shearing force and fracture; well protect centrifugal impellers blades; guarantee to pull down centrifugal impeller gland nut in the situation of injuring part not; reduce economic loss, there is simple in structure, easy to operate, practical feature.
(2) leaf pelvic surface of sacrum inclination angle described in the utility model and leaf back inclination angle can be good at same centrifugal impeller leaf pelvic surface of sacrum inclination angle and centrifugal impeller leaf back inclination angle well coordinates.
(3) leaf basin root fillet described in the utility model and blade back root fillet can be good at same centrifugal impeller leaf basin root fillet and centrifugal impeller blade back root fillet well coordinates.
(4) the utility model can reach between the blade of when dismounting centrifugal impeller has stop tooth stressed.
(5) installation through hole described in the utility model can well be fixed on ring wrench body on casing flange, to reach reduction worker's labor intensity, improves repair progress, reduces the object of maintenance cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is stop tooth partial enlarged drawing described in the utility model and sectional drawing.
Fig. 3 is centrifugal impeller structure schematic diagram.
Wherein: 1-installation through hole, 2-stop tooth, 3-leaf pelvic surface of sacrum inclination angle, 4-leaf basin root fillet, 5-leaf back inclination angle, 6-blade back root fillet, 7-centrifugal impeller leaf basin, 8-centrifugal impeller leaf basin root, 9-centrifugal impeller blade back, 10-centrifugal impeller blade back root, 11-outer layer.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but mode of execution of the present utility model is not limited to this.
Embodiment:
A kind of special-purpose stop spanner, shown in Fig. 1, Fig. 2, Fig. 3, comprise ring wrench body, described ring wrench body comprises outer layer 11 and inner layer, on the inner ring wall of described inner layer, be provided with stop tooth 2, in described stop tooth 2 Liang Ge sides, top, be respectively arranged with leaf pelvic surface of sacrum inclination angle 3 and leaf back inclination angle 5, the side, two of bottoms of described stop tooth 2 is respectively arranged with leaf basin root fillet 4 and blade back root fillet 6.In use, ring wrench body is put to centrifugal impeller, stop spanner ring wrench body is installed to casing flange edge, make in the space of stop tooth 2 between centrifugal impeller leaf basin 7 and centrifugal impeller blade back 9, by stop spanner, through hole 1 being installed is fixed to stop spanner on casing flange, leaf pelvic surface of sacrum inclination angle and leaf back inclination angle contact with centrifugal impeller leaf pelvic surface of sacrum and leaf back respectively, leaf basin root fillet and blade back root fillet contact with the fillet of centrifugal impeller leaf basin root and the fillet of blade back root, thereby make the root of centrifugal impellers blades stressed, avoid centrifugal impellers blades top be subject to shearing force and fracture, when operation, can carry out two-way stop, when described stop tooth is adjacent to centrifugal impeller blade back root to centrifugal impeller stop, gland nut is unscrewed in realization, when described stop tooth is adjacent to centrifugal impeller leaf basin root to centrifugal impeller stop, realizes and tighten gland nut.
For better realizing the utility model, for ease of leaf pelvic surface of sacrum inclination angle and leaf back inclination angle, well with the inclination angle of centrifugal impeller leaf pelvic surface of sacrum and the inclination angle of centrifugal impeller leaf back, well coordinate, shown in Fig. 1, Fig. 2, Fig. 3, be provided with especially following structure: described leaf pelvic surface of sacrum inclination angle is greater than the inclination angle of centrifugal impeller leaf pelvic surface of sacrum, and described leaf back inclination angle is less than the inclination angle of centrifugal impeller leaf back.
For better realizing the utility model, for ease of leaf basin root fillet and blade back root fillet, with the fillet of centrifugal impeller leaf basin root and the fillet of centrifugal impeller blade back root, well coordinate, shown in Fig. 1, Fig. 2, Fig. 3, be provided with especially following structure: described leaf basin root fillet is with the fillet equal and opposite in direction of centrifugal impeller leaf basin root, and described blade back root fillet is with the fillet equal and opposite in direction of centrifugal impeller blade back root.
For better realizing the utility model, for the ease of making, between centrifugal impellers blades, can there is stop tooth stressed, shown in Fig. 1, Fig. 2, Fig. 3, following structure is set especially: described stop tooth 2 is 24.
For better realizing the utility model, for the ease of ring wrench body can be well fixed on casing flange, shown in Fig. 1, Fig. 2, Fig. 3, be provided with especially following structure: in described outer layer 11, along circle central axis, to being provided with, through hole 1 is installed, described installation through hole 1 is 12.
Shown in Fig. 1, Fig. 2, Fig. 3, adopt optimized instrument when specific operation are decomposed and assemble the operation of centrifugal impeller gland nut:
While decomposing centrifugal impeller gland nut, clockwise rotate centrifugal impeller, make centrifugal impeller blade back 9 near leaf back inclination angle 5, centrifugal impeller blade back root 10 is adjacent to blade back root fillet 6; In decomposing the process of centrifugal impeller gland nut, to centrifugal impeller apply one with the contrary moment of unscrewing centrifugal impeller gland nut active force, centrifugal impeller force part is centrifugal impeller blade back root 10 fillet places, centrifugal impeller blade back 9 is not subject to shearing force, prevent from the fractureing blade of centrifugal impeller, conveniently unscrews centrifugal impeller gland nut.
During assembling centrifugal impeller gland nut, rotate counterclockwise centrifugal impeller, make centrifugal impeller leaf basin 7 near leaf pelvic surface of sacrum inclination angle 3, centrifugal impeller leaf basin root 8 is adjacent to leaf basin root fillet 4; In tightening the process of centrifugal impeller gland nut, to centrifugal impeller apply one with the contrary moment of tightening centrifugal impeller gland nut active force, centrifugal impeller force part is centrifugal impeller leaf basin root 8 fillet places, centrifugal impeller leaf basin 7 is not subject to shearing force, prevent from the fractureing blade of centrifugal impeller, conveniently tightens centrifugal impeller gland nut.
The technical problem that the utility model exists during for existing dismounting centrifugal impeller; to material, it is being aluminum alloy; blade is that space curved surface centrifugal impeller carries out in stop operation; stop tooth is positioned at gap between blade, and centrifugal impeller root is stressed, avoids centrifugal impellers blades top be subject to shearing force and fracture; well protect centrifugal impellers blades; guarantee to pull down centrifugal impeller gland nut in the situation of injuring part not, reduce economic loss, there is simple in structure, easy to operate, practical feature.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction, any simple modification, equivalent variations that every foundation technical spirit of the present utility model is done above embodiment, within all falling into protection domain of the present utility model.

Claims (5)

1. a special-purpose stop spanner, it is characterized in that: comprise ring wrench body, described ring wrench body comprises outer layer (11) and inner layer, on the inner ring wall of described inner layer, be provided with stop tooth (2), in Liang Ge side, described stop tooth (2) top, be respectively arranged with leaf pelvic surface of sacrum inclination angle (3) and leaf back inclination angle (5), the side, two of bottoms of described stop tooth (2) is respectively arranged with leaf basin root fillet (4) and blade back root fillet (6).
2. a kind of special-purpose stop spanner according to claim 1, is characterized in that: described leaf pelvic surface of sacrum inclination angle (3) is greater than the inclination angle of centrifugal impeller leaf pelvic surface of sacrum, and described leaf back inclination angle (5) is less than the inclination angle of centrifugal impeller leaf back.
3. a kind of special-purpose stop spanner according to claim 1, is characterized in that: described leaf basin root fillet (4) is with the fillet equal and opposite in direction of centrifugal impeller leaf basin root, and described blade back root fillet (6) is with the fillet equal and opposite in direction of centrifugal impeller blade back root.
4. according to a kind of special-purpose stop spanner described in claim 1-3 any one, it is characterized in that: described stop tooth (2) is 24.
5. according to a kind of special-purpose stop spanner described in claim 1-3 any one, it is characterized in that: upper along circle central axis to being provided with installation through hole (1) in described outer layer (12), described installation through hole (1) is 12.
CN201320737279.2U 2013-11-21 2013-11-21 Special stop spanner Active CN203532343U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320737279.2U CN203532343U (en) 2013-11-21 2013-11-21 Special stop spanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320737279.2U CN203532343U (en) 2013-11-21 2013-11-21 Special stop spanner

Publications (1)

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CN203532343U true CN203532343U (en) 2014-04-09

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Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103441582A (en) * 2013-08-22 2013-12-11 桂林市创琳电子科技发展有限公司 Three-in-one network next-generation internet of things power supply device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103441582A (en) * 2013-08-22 2013-12-11 桂林市创琳电子科技发展有限公司 Three-in-one network next-generation internet of things power supply device

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